C.
M. Jewell & Associates (CMJA) is a consultancy practice specialising
in the field of hydrogeology and in the assessment and management of contaminated
land and water. We began operating independently in mid 1992, and since
that time have successfully completed well over 300 projects throughout
eastern Australia.

The
many, varied aspects of hydro-geology form the core of our practice. These
include the assessment, development and management of groundwater as a
resource for potable and irrigation supply, the protection of groundwater
from pollution, and its control where it creates problems for mining and
civil engineering excavation or slope stability or where it forms a transport
pathway for chemical contaminants.

Hydrogeology
is a multi-disciplinary science, involving aspects of chemistry, geophysics,
soil science, surface water hydrology and wastewater engineering. Our
experience and capability extends into the overlapping areas of these
disciplines, and we have developed a network of associates in the related
areas of geotechnical engineering, wastewater treatment and environmental
planning.

We
also practise extensively in the area of contaminated land assessment
and management. Where it is appropriate and cost-effective for our clients,
we can - and do - undertake site contamination assessment and remedial
design in-house. Increasingly, however, our practice is focusing on the
performance of external audits or reviews, and on the provision of specialist
services within larger, multi-company consortiums.

Chris
Jewell is an Environmental Auditor (Contaminated Land), appointed by the
Environment Protection Authority (Victoria), and a Site Auditor accredited
by the Environment Protection Authority (NSW). In this role he undertakes
independent audits of contaminated land.

Environmental Audit
In the specific context of contaminated land, "environmental audit"
generally refers to an external review of a site assessment or validation
reports prepared by other consultants, or review of the process of site
remediation itself.

An
audit may be statutory when carried out to comply with requirements imposed
by legislation, a planning instrument, or a development consent. Alternately,
an audit may be non-statutory when it is carried out for due diligence
purposes or as a requirement of a civil contract or agreement.

On
completion of an audit in NSW, the auditor issues a Site Audit Statement
and a Summary Site Audit Report.

Chris
Jewell was first appointed as an Environmental Auditor by the Environment
Protection Authority (Vic.) in 1995 and by the Environment Protection
Authority (NSW) in June 1998. Since accreditation he has carried out seven
statutory audits in Victoria and well over 100 site audits in NSW.

Soil
and Groundwater Contamination Assessment
We have participated in many soil and groundwater contamination assessment
studies. Among the most interesting are:

Homebush
Bay and Newington - the 2000 Olympic venue. Chris Jewell was project
manager for the investigation carried out by Coffey Partners in 1989-91,
and CMJA was a major participant with CH2M HILL Australia in the Homebush/Newington
remedial investigation undertaken in 1993-95.

Katoomba-Leura
Gasworks - a site with severe chemical contamination of shallow groundwater
- investigation, modelling and development of remedial action plan.

Litigation
SupportWe
have provided expert witness support to parties appearing before Commissions
of Inquiry and Coronial Inquests, and in cases before the Land and Environment
Court.

Examples
include the Thredbo landslide inquest, the Parkville Piggery inquiry,
the Cadia Goldmine inquiry, and the Tomago Sandbeds litigation. Chris
Jewell has acted as a court-appointed expert for the NSW Supreme Court.

Groundwater
Modelling
We use, in-house, a range of modern groundwater modelling and visualisation
software. This includes:

Visual
MODFLOWINTERSAT

}

finite
difference flow

MODPATH

-

particle
tracking

SEEP-W

-

finite
element flow and transport

Visual
GROUNDWATER

-

3D
visualisation

MOC

-

method
of characteristics

PRINCE

-

analytical
flow and transport

Examples of projects where we have used these models include: design of
a plume capture system downgradient of a feedlot (INTERSAT), assessment
of the impact of leakage from off-stream water storage (MODFLOW), risk
assessment of leakage from effluent storage lagoons (PRINCE), Darling
River surface-groundwater interaction (finite element), inflows to leachate
control drain at Homebush Bay (finite element), Thredbo landslide (SEEP-W),
Parkes Borefield (MODFLOW).

Groundwater
GeophysicsWe
make extensive use of geophysical techniques, during groundwater and environmental
investigations.